In-use cover for a single gang rectangular box



FIG. 1 is a perspective view of an in-use cover for a single gang rectangular box;

FIG. 2 is a front view of the cover of FIG. 1;

FIG. 3 is a left side view of the cover of FIG. 1, the right side view being a mirror image thereof;

FIG. 4 is a rear view of the cover of FIG. 1;

FIG. 5 is a top view of the cover of FIG. 1; and,

FIG. 6 is a bottom view of the cover of FIG. 1. 

The ornamental design for a in-use cover for a single gang rectangular box, as shown and described. 